Corn
トウモロコシ (toumorokoshi)
Definition
A grain commonly found in commercial dog and cat food, and sometimes offered to dogs off the cob in small, plain amounts.
Key points
- Cooked, plain corn kernels off the cob are generally considered acceptable for dogs in small amounts
- The hull around each kernel is high in cellulose and often passes through undigested, showing up whole in stool
- The cob is the real hazard. It is a well known cause of intestinal blockage in dogs when swallowed
- Cats have no dietary need for corn and are better served by a meat-based diet
What is corn in pet feeding?
Corn shows up constantly in the pet world, both as a common ingredient in commercial dog and cat food and as something that falls off a plate at a summer cookout. Whole kernels, cut fresh or from a can, are the form most owners consider sharing with a dog.
Where it fits in gut care
Each kernel is wrapped in a hull that is largely cellulose, a type of fiber that dogs' and cats' own digestive enzymes cannot break down. That is why corn often passes through and reappears whole in the stool. On its own, this is not unusual and is not a sign that something is wrong. It is worth paying attention to only if it comes with looser stools or other changes, in which case it may be worth reconsidering how much corn, or how much fiber generally, is being offered.
How to serve it
Offer only cooked, plain kernels that have been cut off the cob, with no butter, salt, or seasoning. Start with a small amount, the way you would with any new food, and keep an eye on stools over the following day. The cob is the real risk here, not the kernels: it is large, dense, and does not break down, and swallowing a piece is a well documented cause of intestinal obstruction in dogs. Dispose of cobs where a dog cannot reach them. Cats have no dietary need for corn at all, and it is not something to seek out for them beyond what is already in a commercial diet.
This entry shares general knowledge and is not veterinary advice. It is not intended to diagnose, treat or prevent any condition. If you have concerns about your dog or cat, please consult your veterinarian.
FAQFrequently asked questions
Can dogs eat corn?
Cooked, plain kernels off the cob are generally considered acceptable for most dogs in small amounts. The hull is hard to digest, so it is best offered occasionally rather than as a regular part of the diet.
Can dogs eat corn on the cob?
No. The cob itself is not the concern the kernels are, but its size and toughness make it a well known cause of intestinal blockage when a dog swallows a piece. Keep cobs out of reach, including in a covered trash can.
Why does corn come out whole in my dog's poop?
The hull surrounding each kernel is mostly cellulose, which dogs' and cats' digestive enzymes do not break down well. Kernels passing through whole and intact is common and, on its own, is not usually a cause for concern.
Can cats eat corn?
Cats are obligate carnivores with no real need for grains like corn. Small amounts used as a filler in commercial food are not considered a problem, but there is no reason to offer it on purpose.